Pathology Which is not a minor diagnostic criteria for multiple myeloma? A Lytic bone lesions B Plasmacytosis greater than 20% C Plasmacytoma on biopsy D Monoclonal globulin spike on serum melectrophoresis of >2.5 G/DL for IgG,>1.5 G/DL for IGA) 💡 Explanation Which is not a minor diagnostic criteria for multiple myeloma? ✓ Correct Answer: C. Plasmacytoma on biopsy